ATX power supply

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  • newtothis
    Badcaps Legend
    • Mar 2013
    • 1556
    • england
    #1

    ATX power supply

    I have a Corsair TX650w ATX PSU that had gone BANG!

    Checked the circuit side of the PCB and found a nice black patch, a SOT23 Transisitor had blown and also took out an SMD 20ohm resister on the secondary side. The primary side fuse had also blown.

    I replaced the SOT23 package, resistor and fuse... everything else looks ok, seems to test ok and have good continuity throughout the board.... Problem being that every time i try to test this supply it blows the fuse at the plug as soon as it is switched on.

    Any ideas to what it may be?

    I will post some pictures soon
    Tags: None
    • mariushm
      Badcaps Legend
      • May 2011
      • 3799
      #2
      Re: ATX power supply

      Check the mosfets and parts around what blew up... something may still be shorted in the psu making the fuse blow,

        Comment

        • cheapie
          null
          • Jul 2010
          • 849
          • USA
          #3
          Re: ATX power supply

          If it is in fact one of the switchers that went, it may have killed the other one as well.

            Comment

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